â¢ For identification: type of stem (woody or herbaceous), monocot or dicot, has pubescence (hair) or not (glabrous), shape of stem (square â round), or contains glands. Stem Monocot stem
Constantine enacted another change that helped accelerate the fall of the Roman Empire. In 330 C.E., he split the empire into two parts: the western half centered in Rome and the eastern half centered in Constantinople, a city he named after himself.
The Roman Empire divided into the Gallic Empire (left), Roman Empire (center) and Palmyrene Empire (right) in 270 AD during the Crisis of the Third Century. With the empire in civil war and torn into multiple factions, society quickly fell apart.